samadhau na vidhiyate
Word for word:
bhoga — to material enjoyment; aisvarya — and opulence; prasaktanam — for those who are attached; taya — by such things; apahrta-cetasam — bewildered in mind; vyavasaya-atmika — ﬁxed in determination; buddhih — devotional service to the Lord; samadhau — in the controlled mind; na — never; vidhiyate — does take place.
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
In the minds of those who are too attached to sense enjoyment and material opulence, and who are bewildered by such things, the resolute determination for devotional service to the Supreme Lord does not take place.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Samadhi means “ﬁxed mind.” The Vedic dictionary, the Nirukti, says, samyag adhiyate ’sminn atma-tattva-yathatmyam: “When the mind is ﬁxed for understanding the self, it is said to be in samadhi.” Samadhi is never possible for persons interested in material sense enjoyment and bewildered by such temporary things. They are more or less condemned by the process of material energy.