One verse

Srimad Bhagavatam 10.90.27

10.90.27

या: सम्पर्यचरन्प्रेम्णा पादसंवाहनादिभि: । जगद्गुरुं भर्तृबुद्ध्या तासां किं वर्ण्यते तप: ॥ २७ ॥

yāḥ samparyacaran premṇā pāda-saṁvāhanādibhiḥ jagad-guruṁ bhartṛ-buddhyā tāsāṁ kim varṇyate tapaḥ

yāḥ
who
samparyacaran
perfectly served
premṇā
with pure love
pāda
His feet
saṁvāhana
by massaging
ādibhiḥ
and so forth
jagat
of the universe
gurum
the spiritual master
bhartṛ
as their husband
buddhyā
with the attitude
tāsām
of them
kim
how
varṇyate
can be described
tapaḥ
the austere penances

And how could one possibly describe the great austerities that had been performed by the women who perfectly served Him, the spiritual master of the universe, in pure ecstatic love? Thinking of Him as their husband, they rendered such intimate services as massaging His feet.