If you chant Myoho-renge-kyo with deep faith in this principle, you are certain to attain Buddhahood in this lifetime. That is why the sutra states, “After I have passed into extinction, [one] should accept and uphold this sutra. Such a person assuredly and without doubt will attain the Buddha way.” Never doubt in the slightest.
Nam myoho renge kyo
Nam myoho renge kyo