Is there any relationship between tourist visa and passport?

Legal Subjectivity:

Passport: In English, it is a port pass. It is a certificate issued by the country when its citizens enter and exit the country and travel or stay abroad. Legal documents of the citizen’s nationality and identity. Simply put, passport for overseas use = ID card for domestic use. Our government issues three types of passports, namely diplomatic passports, official passports and ordinary passports. Diplomatic passports are generally issued to persons with diplomatic status, such as diplomats, consular officials, heads of state, heads of government, members of Congress or government delegations who conduct state activities in foreign countries, etc., all use diplomatic passports. According to international practice, the spouses and minor children of the above-mentioned persons are generally issued diplomatic passports. An official passport is a passport issued to national civil servants. Some countries also call such passports for government officials "official passports." In addition, all countries issue such passports to staff in embassies (consulates) stationed abroad who do not have diplomatic status, as well as their spouses and adult children. Ordinary passports refer to passports issued to ordinary citizens (that is, ordinary people). In our country, there are two types of ordinary passports. One is the ordinary passport for official purposes, which is generally issued to graduate students, international students, visiting scholars, engineering and technical personnel sent by the country, etc. This kind of passport is issued by the Ministry of Foreign Affairs or the local foreign affairs office. The other is the ordinary private passport, which is issued by the Ministry of Public Security or local public security agencies authorized by the Ministry of Public Security for use by expatriates from the country who go to foreign countries for private matters or who live abroad for tourism. Visa: It is an endorsement or stamp by a country’s sovereign authority on the passport or other travel documents held by its own or foreign citizens to indicate that they are allowed to enter or exit the country’s territory or pass through the country’s borders. It can also be said to be a document issued to them. Endorsement certificate. In summary, a visa is a document issued by a country's entry-exit management agency (such as the Immigration Bureau or its embassy or consulate abroad) to express approval of entry to foreign citizens. Most visas are endorsed (stamped) or affixed with a label on a person's passport or travel document. The stamp or label has clear explanatory text indicating the holder's reason for entering the country. Permission to stay or travel through its territory to other countries. The visa system is a symbol of national sovereignty and a concrete manifestation of a country's entry control and management of citizens from other countries, in order to achieve the purpose of maintaining national security and domestic social order. Normally, when a country issues visas to foreigners, it is based on the principle of equality and reciprocity in the treatment given to its own nationals by the foreign country, and provides equal preferential treatment and convenience for the nationals of the two countries to travel with each other.