Lifespan for each Cultivation Realm
Life Years according to the Cultivation Realm:
In this story, the cultivation years of the beast obtained by synthesizing it, play an important role when it comes to the number of additional years of life added per Cultivation Realm.
Basically, for each Spiritual Bone obtained it will give additional years of life.
1 year of life for every 100 years of cultivation of the beast.
There is no specific number of years for each realm for this, and it is dynamic depending on the cultivator in question.
In addition, it is cumulative.
For example, if a cultivator in the First Realm obtained a 500-year Beast, in the Second Realm a 1,500-year Beast, and in the Third Realm a 4,500-year Beast (the maximum for each realm), then he will have a total of 65 additional years. Considering that normally a person lives 100 years, then he will live an approximate 165 years if he never gets his fourth spiritual bone.
If, for some reason, he gets his fourth spiritual bone from an 8,000-year-old beast, then his life expectancy will increase by 80 years over the 165 years he initially had.
To give you an idea:
1.- Realm Spiritual Strengthening of the Body: They can obtain Spiritual Bones from beasts up to 500 years old (5 additional years maximum, except for exceptions).
2.- Realm Spiritual Entry: Spiritual Bones of beasts up to 1,500 years old (15 years maximum, with exceptions)
3.- Spiritual Master Realm: Spiritual Bones of beasts up to 4,500 years old (45 years maximum, with exceptions)
4.- Spiritual Lord Realm: Spiritual Bones of beasts up to 8,000 years old (80 years maximum, with exceptions)
5.- Spiritual Ancestor Realm: Spiritual Bones of beasts up to 25,000 years old (250 years maximum,...).
6.- Spiritual King Realm: Spiritual Bones of beasts up to 50,000 years old (500 years maximum,...).
7.- Spiritual Emperor Realm: Spiritual Bones of beasts up to 80,000 years old (800 years maximum,...)
8.- Saint Spiritual Realm: Spiritual Bones of beasts between 100,000 and 180,000 years old (between 1,000 and 1,800 years maximum,...)
9.- Supreme Spiritual Realm: Beasts of more than 200,000 years old, up to 350,000 or 400,000 years old. So, up to 4,000 years more or less.
Remember, for every 100 years of the Spiritual Bone obtained, there is 1 additional year of life. This will have repercussions in history later on.