I don't do formal meditation but I actively practice being present and mindful when doing other things. For example, walking, driving, washing dishes by hand, mowing the lawn, lifting weights, stretching (Kit Laughlin not yoga) and this has done wonders for me.
The best book I have ever read on this kind of thing is The Practicing Mind by Thomas Sterner.
It's really short and simple, and doesn't tell you anything you don't already know, but the way it packages everything really helped me internalise a few basic concepts (equanimity being main one) and actually apply them in my day to day life. It's no actually about meditation or any religious stuff. It simply highlights how anxious and impatient we are these days, how we can't concentrate and how we want instant results in everything we do. Nobody wants to put the work in. Yet as soon as you let go of all that and focus exclusively on the on the Process (read Practice) of whatever it is you're doing, and ignore your mind's demand for results, ironically the results come to you much quicker, because you're not so attached to them.
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On a marginally different note, a concept that I have finally learned, that applies to all areas of life, which stems from this in some way is that you can't sell the basics. You can't market the fundamentals.
What people typically do in an area of life is they position themselves as experts and then sell you overly complex products and programmes that allegedly contain the secret ingredient that you've been missing. The one or two things that have been holding you back will unlock your progress to success, but only if you're willing to pay for them.
For a while I used the Headspace meditation app, but only the free content. Once I'd got the hang of that, I looked at the premium content. They offered meditation to relax, meditation for school, for work, for stress, for pain, empathy, understanding, happiness, contentment, improved sports performance, better sleep. You name it, there was a meditation for whatever you needed. Clearly I needed to sign up!
I didn't. Because I'm a hardcore mustachian with some sense. I remembered, the free content has already given me everything I need to know to do this for a lifetime. All I'll be paying for is irrelevant extras.
HERE is a great article on this from Lyle McDonald. He's a writer and a coach that helps athletes and bodybuilders with diets and weight training programs. That might sound off putting to some of you, but that's not what this article is about. It's about how you just need to consistently apply (that means actually
DO) the basics/fundamentals over time, and not keep searching for more or better information. I read this once a week on my lunch hour to keep this at the forefront of my mind.
I'd encourage you to do the same with meditation. If you can build up to doing 10 minutes of simple breathing meditation every single day for the rest of your life, that will do you more good than believing you need the advice of a guru, or an app with premium content or to attend some kind of advance practitioners course.
That YouTube video that MadBikePoet linked to above is pure gold. It's completely free and more than enough to get you started. You don't need any more information. You need to meditate.