All Buddhas Awakens by Breath Meditation!
It has aspects both of
serene calm (Samatha)
and incisive insight (Vipassana).
It is extraordinarily advantageous to
train this unique
breathing technique.
Can recommend this booklet about standard Breathing Meditation very
much:
Mindfulness of Breathing. Classic Anapanasati meditation manual of the root
Pali texts translated by
Bhikkhu ñānamoli.
BPS.
1998.
https://what-buddha-said.net/library/pdfs/anapanasati.pdf

The ideal is when
Calm and
Insight
goes hand in hand, as if yoked together!

More on this both simple yet quite profound Breathing Meditation:
https://What-Buddha-Said.net/drops/IV/The_LAMP_I.htm
https://What-Buddha-Said.net/drops/IV/The_LAMP_II.htm
https://What-Buddha-Said.net/drops/IV/The_LAMP_IV.htm
https://What-Buddha-Said.net/drops/IV/The_LAMP_III.htm
https://What-Buddha-Said.net/drops/II/Awareness_by_Breathing.htm
https://What-Buddha-Said.net/drops/IV/Experiencing_the_Breath.htm


More
on Insight (Vipassanā):
https://What-Buddha-Said.net/drops/IV/Calm_and_Insight.htm
https://What-Buddha-Said.net/drops/IV/In_this_very_Life.htm
https://What-Buddha-Said.net/drops/II/Highway_to_Nibbana.htm
https://What-Buddha-Said.net/drops/II/The_18_Principal_Insights.htm
https://What-Buddha-Said.net/drops/IV/Breathing_Calm_and_Insight.htm