A.C. Bhaktivedanta Swami Prabhupada, Picture Quotes

Meditation means stopping all nonsensical activities, at least for the time being. Devotional service, however, not only puts an end to all nonsensical mundane activities, but also engages one in meaningful devotional activities. — The Nectar of instruction, Text 02
A.C. Bhaktivedanta Swami Prabhupada, Picture Quotes

Chanting of the Hare Krishna mantra is the easiest process of meditation in this age.
Srimad Bhagavatam 4.8.53,
Srila Prabhupada
Lord Krishna
For one who constantly meditates upon My presence within all persons, the bad tendencies of rivalry, envy and abusiveness, along with false ego, are very quickly destroyed.