Verse
यजन्ते सात्त्विका देवान् यक्षरक्षांसि राजसाः ।प्रेतान्भूतगणांश्चान्ये यजन्ते तामसा जनाः ॥
Sattwic men offer sacrifice to the gods, the rajasic to the Yakshas (the keepers of wealth) and the rakshasic forces; the others, the tamasic, offer their sacrifice to elemental powers and grosser spirits.
Gītā 17·4