I want to visit my aunt is the US whom just lost...

If you want to get a tourist visa to America, that visa is called B-2
With the following steps:
Step 1:
Complete the Electronic Nonimmigrant Visa Application Form (DS-160).
Through the following website:  Electronic Nonimmigrant Visa Application Form (DS-160)
Step 2:
Pay the fees.
Step 3:
Schedule an appointment at the site of this US immigration service. There are three information to schedule your appointment:
1.      Passport number
2.      CGI reference number of your visa fee receipt.
3.      The 10 digit bar code number from your DS-160 Form Confirmation page.
 
Step 4:
Visit the US Embassy at the date and time of your visa interview. You must bring a hard copy of the letter of appointment, the confirmation page of the DS-160 form, a personal photograph taken during the previous six months, the present passport and all the old passports. Orders that do not have all of these items will not be accepted.
 
You have to submit the following documents when you apply:
·         Current evidence of income, tax payments, real estate ownership, or ownership of business or assets.
·         The plan of the trip / or any other explanation of your planned trip.
·         A letter from your employer explaining your position, salary, duration of employment, any authorized leave, and the purpose of work, if any, from your trip to the United States.
·         The criminal record of any arrest or conviction anywhere, even if you have completed your sentence or been pardoned after.
·         Certificate of salary for the last three months of the bank transfer the salary.
·         Hotel booking
·         Booking of airline tickets.
·         Valid passport for not less than six months.

It is possible to review the embassy and find out the reasons for the refusal, and then prove that the visa is for the purposes of tourism and not asylum, along with providing proof of work in the country and that you wish to return to bypass the refusal of Article 214B. For the purposes of approving the granting of a visa through re-application