Dhoop (incense) and divo (lamp) are part of the Jain Ashta-Prakari Puja (the eight-fold offering) and are commonly done as upachār to the Tirthankaras. Here is the simple meaning and purpose:

• What it is: Dhoop and dipak are two of the eight offerings in Ashta-Prakari Puja. They are used to purify the space and focus the mind during worship. In many Jain communities, this part of the ritual is specifically called dhoop puja and dipak puja. ( jainknowledge.com)
• Why we do it:

- Purification: The fragrance of the incense helps purify the environment and our thoughts. - Detachment and inner change: The rising smoke reminds us of letting go of passions and attachments. - Reverence and inspiration: The lamp represents the light of correct conduct and knowledge; lighting it honors the Tirthankaras and strengthens our commitment to right faith, right knowledge, and right conduct. - Focus for meditation: These relatively simple offerings help quiet the mind and prepare it for reflection on virtues like purity, truth, non-violence, and compassion. ( jainknowledge.com)

• Do Digambar and Shwetambar differ?:

- Both traditions commonly include dhoop and dipak in their puja, but there can be local variations in exact sequence, wording, or whether other items like mirrors or chāmi (chamar) are used. Some groups emphasize mūrti-pūjā more than others, so practices may vary by temple and region. ( jainknowledge.com)

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