There is no spiritual significance of finding a dead raven or any other sort of animal - anywhere. There are superstitions about certain animals, but these are superstitions and have no real place in a spiritual life, whether Christian or otherwise.

Spiritual health involves finding meaning, purpose, and connection to something greater than oneself. It often includes practices such as meditation, prayer, or reflection that cultivate inner peace, gratitude, and compassion. Spiritual health can contribute to overall well-being and a sense of fulfillment in life.

The sinful World

in spiritual sense 5 senses are considered as venting doors to mind. so you have to shut before meditation for concentration.

There are 5 elements, Air, Fire, Water, Earth and Spirit.

In my personal opinion that is the spiritual meaning of the number 5.