Can we become God?
Yes. "brahma vid brahmaiva bhavati". One who knows brahman becomes brahman himself.
The path to know brahman is yoga - any (or a combination) of bhakti/gnyana/karma (upasana)/raja yogas.
स यो ह वै तत् परमं ब्रह्म वेद ब्रह्मैव भवति नास्याब्रह्मवित्कुले भवति ।
तरति शोकं तरति पाप्मानं गुहाग्रन्थिभ्यो विमुक्तोऽमृतो भवति ॥ ९ ॥
sa yo ha vai tat paramaṃ brahma veda brahmaiva bhavati nāsyābrahmavitkule bhavati |
tarati śokaṃ tarati pāpmānaṃ guhāgranthibhyo vimukto'mṛto bhavati || 9 ||
9. He who knows that highest Brahman becomes even Brahman; and in his line, none who knows not the Brahman will be born. He crosses grief and virtue and vice and being freed from the knot of the heart, becomes immortal.
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