Another handy tool I am using a lot more lately is single-pointed attention, for when the energies of the mind start to get a bit intense throughout the day. It is a handy tool, and it does help to calm down frenetic thought energies. Moments of single-pointed attention can help slow the mind down, and then it is easier to replace negative thoughts with ones of love and equanimity instead.
At the moment I like practising staying with the breath, either at the nostrils, or the whole body breathing as one. I really like the air element (-: Whatever comes up that isn't the breath, I just set it aside like its useless rubbish and return to the breath and go deep into the mind with it like I am uncovering a precious jewel beneath all the rubbish.
Sometimes I label the intrusive thoughts as greed, hate, or delusion, or just say: 'I see you Mara.' Using the term 'Mara' as a catch-all for the defilements in the mind. And then I just stop following them, and centre attention back with the breath.
Sometimes if I get it right, I can find a peaceful empty place deep in the centre of the mind, like a cave, and it feels safe to go there, the energies of the mind become like the rain falling outside, and I am not affected by them. Or it feels like I am sitting on the ocean floor and way above me is the surface of the water, like the surface level of the mind, constantly moving as it ripples and changes, but I am far below it, perfectly still and at ease like a contented rock.
Another technique I learnt at a retreat recently, is to use the word 'mind' to watch the mind. You just keep repeating the word 'mind' over and over in the mind (-: I know it sounds like a tongue twister. One uses the word 'mind' as a reminder that one is watching the mind.
One keeps centring one's attention with the word 'mind' and as one does this, one watches the process of thought making. Any distracting thoughts that arise just push them aside using the thought 'mind'.
As one repeatedly says the word 'mind', one uses it as a tool to get to the source of thoughts, how they are generated, where they come from. Keep pushing away the distracting thoughts that arise like water sprouting out of a fountain and go deep and look for the source of the water in the fountain. What is it that keeps generating these thoughts? Keep intending to go deeper, and keep looking for the source.
It feels hidden at first, like an inpenetrable blackness that thoughts just mysteriously bubble out of. But after a while and lengthy practise, you start to see the intentions behind the thoughts, and if you go deeper still there is craving. One can watch the less intrusive thoughts that bubble up in peripheral awareness, and as one does, one can start to see that they are sankharas, mental formations created from repeated intentions in the past, that have now developed their own momentum and energy, and become habits. And as you go deeper, it is like going back in time, and more of what was hidden previously starts to become visible and one's awareness of the mind grows.
If saying the word 'mind' over and over gets tiring, which it can. Just have a rest and practise breath meditation, till one feels settled and calm enough to start watching the mind again.
Eventually one can let go of repeatedly thinking the word 'mind' and no longer need to use an anchor to watch the mind. Like someone sitting serenely under a tree watching a stream flow by in front of them. The stream in this metaphor is the contents of the mind, and one remains at ease, and still, anchored in deep composure, watching the contents of the mind as they flow and change. Not clinging to any of it, just watching without reacting to it or getting involved in it. And as one does this, one starts to see that the mind is always changing, that it is inconstant, impermanent.
This is a kind of samhadi, not as deep as jhana, but it is a pleasant and empowering state of mind and insightful. Occasionally one gets distracted by the contents of the mind, and without realising it, one has waded into the stream and started identifying with it all again and is getting swept away by the currents of longing and aversion. Don't stress, it happens, depending on how long one has been caught up in the contents of the mind, one may need to go back to the breath or repeating the word 'mind' to bring some stillness and composure back.