श्राद्धकल्पे पितृदेवपूजाक्रमः (Śrāddhakalpa: Order of Pitṛ and Deva Worship)
आकाशे गमयेद्वापि अप्सु वा दक्षिणामुखः / पितॄणां स्थानमाकाशं दक्षिणा चैव दिग्भेवेत्
ākāśe gamayedvāpi apsu vā dakṣiṇāmukhaḥ / pitṝṇāṃ sthānamākāśaṃ dakṣiṇā caiva digbhevet
Facing south, one may send the piṇḍa into the sky or offer it into the waters. The abode of the Pitṛs is the firmament, and the southern quarter is their direction.