सर्वं देहगतं द्रव्यं वियद्व्याप्तं मृगेक्षणे ।विभावयेत् ततस् तस्य भावना सा स्थिरा भवेत्
In plain words
Contemplate all the substance within the body as pervaded by space, gazelle-eyed one; then your contemplation of it becomes steady.
सर्वं देहगतं द्रव्यं वियद्व्याप्तं मृगेक्षणे ।विभावयेत् ततस् तस्य भावना सा स्थिरा भवेत्
Contemplate all the substance within the body as pervaded by space, gazelle-eyed one; then your contemplation of it becomes steady.