The reference to being Spiritual vs. Religious can be somewhat colloquial, and, therefore, ambiguous in its description, but lets give it a go!
Being Spiritual is more so being Godly, whereas being Religious is being Traditional as it relates to laws or things handed down.
The difference of the two would be the motivation!  Being Godly means being ministry concerned and purpose fulfilling, because Ministry is finding a need and meeting it.
Whereas being Religious is more so Self-Status Promoting…. which leads to Controlling mankind instead of Serving mankind.
Paul said in Galatians 6:1 “Brethren if any man be overtaken with a fault, ye which are Spiritual, restore such an one in the spirit of meekness; considering thyself, lest thou also be tempted.”
This qualifies my point that to be Religious is to be Controlling while being Spiritual is to be Caring!