One verse

Srimad Bhagavatam 11.9.25

11.9.25

देहो गुरुर्मम विरक्तिविवेकहेतु- र्बिभ्रत् स्म सत्त्वनिधनं सततार्त्युदर्कम् । तत्त्वान्यनेन विमृशामि यथा तथापि पारक्यमित्यवसितो विचराम्यसङ्ग: ॥ २५ ॥

deho gurur mama virakti-viveka-hetur bibhrat sma sattva-nidhanaṁ satatārty-udarkam tattvāny anena vimṛśāmi yathā tathāpi pārakyam ity avasito vicarāmy asaṅgaḥ

dehaḥ
the body
guruḥ
spiritual master
mama
my
virakti
of detachment
viveka
and intelligence which facilitates
hetuḥ
the cause
bibhrat
maintaining
sma
certainly
sattva
existence
nidhanam
destruction
satata
always
ārti
suffering
udarkam
future result
tattvāni
the truths of this world
anena
with this body
vimṛśāmi
I contemplate
yathā
even though
tathā api
nevertheless
pārakyam
belonging to others
iti
thus
avasitaḥ
being convinced
vicarāmi
I wander about
asaṅgaḥ
without attachment

The material body is also my spiritual master because it teaches me detachment. Being subject to creation and destruction, it always comes to a painful end. Thus, although using my body to acquire knowledge, I always remember that it will ultimately be consumed by others, and remaining detached, I move about this world.