Experiment for faithful(s). Agnostics can try. Self-proclaimed atheists may ignore.
Vishnu is the sustainer force. While you are in grihasthi (Age 25 to 50), you must sustain self for the benefits of society. It is your dharma.
Chanting Vishnu Name and imagine him in his different form for different situation work very well. Chant it daily morning.
भोजने च जनार्दनम् ।
शयने पद्मनाभं च
विवाहे च प्रजापतिम् ॥१॥
Think of Vishnu while taking medicine, Janardana while eating¸ Padmanabha while lying down (to sleep) and Prajapati while getting married.
युद्धे चक्रधरं देवं
प्रवासे च त्रिविक्रमम् ।
श्रीधरं प्रियसंगमे ॥ २ ॥
(Think of) Chakradhara while fighting, Trivikrama when you are away from home, Narayana while giving up your body and Sridhara when you meet with those whom you love.
दुःस्वप्ने स्मर गोविन्दं
सङ्कटे मधुसूदनम् ।
कानने नारसिंहं च
पावके जलशायिनम् ॥३॥
(Think of) Govinda when you get bad dreams, Madhusudana when you are in trouble, Narasimha when you are in a forest and Jalashayee when you are caught in a fire.
जलमध्ये वराहं च
पर्वते रघुनन्दनम् ।
गमने वामनं चैव
सर्वकार्येषु माधवम् ॥४॥
(Think of ) Varaha incarnation of the Lord when you are in deep water, Raghunandana (Sri Ram) when you are on a mountain, Vamana when you are on the move and Madhava in all your activities.
प्रातरुत्थाय यः पठेत् ।
विष्णुलोके महीयते ॥५॥
Those who chant these sixteen names of the Lord after waking up in the morning will be rid of all sins and will be honoured in Vishnuloka (Vaikuntha)
विष्णुर्विक्रमणात्’ (महाभारत उद्योग पर्व ७०/१३) इति व्यासोक्तेः He is Vishnu because he moves(spreads) in all directions – vide words of Bhagavan Vedavayasa quoted above.
वेवेष्टि व्याप्नोतीति विष्णुः देशकालवस्तुपरिच्छेदशून्य इत्यर्थः One who pervades everything, unlimited by space, time or object is Vishnu विशतीति विष्णुः Enters (विशति) (all living beings as the indwelling spirit), therefore the Lord is known as Vishnu. shruti also says ‘तत्सृष्ट्वा तदेवानुप्राविशत्’ having created the world, He entered it (as the jivatma)
रोदसी व्याप्य कान्तिरभ्यधिका स्थितास्येति विष्णुः
व्याप्य मे रोदसी पार्थ
कान्तिरभ्यधिका स्थिता ।
विष्णुरित्यभिसंज्ञितः ॥ ( महाभारत, शान्ति ३४१/४२-४३)
O Arjuna ! since my abundant effulgence is spread in the whole of this earth and the skies or because I have unrestricted movement in all directions, I am known as Vishnu