Emperor Candidate is the highest stage of Virtuous Paragons on the Path of Heavens. Their equivalent on the Path of the Grand Era are the Godkings. Emperor Candidates are existences recognized by the Heaven's Will.
To get this recognition, one should reach the Emperor Candidate realm and have a flawless dao foundation. Only a perfect cultivation could house the Heaven's Will. When the Heaven's Will manifests, a mark would appear between the eyebrows of the suitable candidates. Then they will fight to show who possess the most perfect and strong dao. The Heaven's Will will recognised the winner by transforming itself to match its new master dao.