SOPP631: What is a minimum of major/minor scales, vs Hanon finger exercises, vs practicing a piece?

This question was sent by Keith, and he writes in response to my letter asking what are his goals and challenges in organ playing.  He writes,

Vidas,

Thank you for sharing your knowledge and love of organ playing.

My dream for organ playing is to facilitate the expression of worship in music, with the language of harmony.

What things are holding me back from my dream?
1. My ignorance/lack of skill.
- In February I dusted off my marginal four years of grade school piano lessons, after 34 years.

2. Realizing what good technique is - what such technique should feel like when I practice and play.

3. Practice method/discipline - What is a minimum of major/minor scales, vs Hanon finger exercises, vs practicing a piece.
- I practice about an hour a day, some days twice that. Wish I could practice more.

The mini-course emails have been very helpful to me.  I let them queue up behind each other, until I have a chance to fully consider each one.

Regards,
Keith