BUTE rematare" in Shona refers to a specific type of bute (snuff) used in spiritual practices. It is believed to be a spiritual tool used to connect with ancestral spirits, open spiritual sight, and ward off negative energies. 
Here's a breakdown of the uses:
Spiritual Connection:
Bute rematare is used to invoke and connect with ancestral spirits, also known as "midzimu". 
Opening Spiritual Sight:
It is believed to enhance a person's ability to perceive spiritual matters and see beyond the physical realm. 
Protection and Cleansing:
Some believe it helps to remove negative energies, bad spells, and evil spirits. 
Specific Uses:
The use of bute can be specific to the individual and the particular spiritual entities they are trying to connect with. Some people may use it in conjunction with specific rituals or prayers. 
Distinction from Bute Rehondo:
While bute rematare is used for spiritual purposes, some sources say bute rehondo is specifically mentioned in the context of warfare or conflict, although the exact mechanisms are not universally agreed upon. 
It's important to note that beliefs and practices around bute can vary within Shona culture, and some individuals may have specific rituals or protocols for
How to use it
It can be used as snuff or to bath with it for cleansing against  evil spirits.