Technique is important. What you do is important. The various practices you undertake are important.
Practice for practice's sake though, something is missing.
You can chant. Do asana. Meditate. Do any number of so called spiritual things and derive benefit, no doubt.
However, if the underlying commitment towards ego destruction and merging is not there, practice will eventually run out of gas and become unsustainable (perhaps, then, igniting commitment).
Commitment powers practice. The stronger the commitment, the more potent (and less necessary) the practice.
With powerful enough commitment, blowing bubbles even becomes a tool of transformation.