I know i've been spamming it up recently, but I'd just like to add some weight to this (however small).
Recently I've been doing some 'preliminary' metta, before moving onto anapanasati, really focusing on moving that metta outwards, towards specific people and then out to the world in general, one can't help but smile, it definately brings a little pīti out to play, and it makes focus so much easier. For me it's been the like the difference of filling the car up with 91 unleaded, and filling it up with 98 super premium octane.
Hope you all have a Mettaful day.
"And so, because this Teaching is so different from what Westerners are accustomed to, they will try to adapt the Teaching to their own framework. What they need to learn to do is not to adapt the Teaching to their own point of view but to adapt their own point of view to the Teaching. This is called saddhá, or faith, and it means giving oneself to the Teaching even if the Teaching is contrary to one’s own preconceived notions of the way things are."- Ven BodhesakoNanavira Thera's teachings - An existential approach to the Dhamma
| Ven. Bodhesako's essay on anicca