Spiritual baths are a practice. One can be tempted to come to them in a perfunctory or impatient way. It's the thing you do because your spiritual worker or godparent insisted and, well, you have to get it out of the way. A chore. But, really, they are a practice. In santeria (and by extension espiritismo cruzado) all important rituals are accompanied by the ritual washing of something, be they objects or people. These washes are lustral herbal waters that cleanse and prepare but also infuse the object or person with power and blessings. Similarly, in hoodoo spiritual baths figure as an important part of the spiritual workers repertoire of prescriptions for many of the same reasons.
To wash oneself spiritually is a sacred act.
It develops one spiritually. It cleanses and it feeds your spirit. If you want to get into african-derived traditions and you groan and moan implacably about taking a spiritual bath then I have news for you!
You know what? The people who complain the most - the ones that resist and rationalise their way out of baths incessantly - need them more than anyone. There is something about that state of spiritual grubbiness that wants to defend itself. Sometimes it's a spirit that has attached itself to the person and it's whispering in their ear.
Similarly, people sometimes ask how they can develop their mediumship or other spiritual abilities. The best recommendation? Prayer and a routine of spiritual baths. After this particular recommendation one will often get a blank stare, or there will be an awkward pause, and then they ask: but is there a visualisation or an amulet or something?
No, just prayer and spiritual baths.
If the power and efficacy of these are not apparent to you yet, then you should try them as a practice and see what it does for your spiritual development. See what it does for your emotional well-being. Discover for yourself how it enhances your spiritual protection, and your clout as a magician. It is the african magical practice par excellence. There is a good reason for that.